The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxies

This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of recordMonthly Notices of the Royal Astronomical Society 511.2 (2022): 2897-2913 is available online at: https://academic.oup...

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Detalhes bibliográficos
Autores: Contreras-Santos, Ana, Knebe, Alexander, Pearce, Frazer, Haggar, Roan, Gray, Meghan, Cui, Weiguang, Yepes Alonso, Gustavo, De Petris, Marco, De Luca, Federico, Power, Chris, Mostoghiu, Robert, Nuza, Sebastián E., Hoeft, Matthias
Formato: artículo
Fecha de publicación:2022
País:España
Recursos:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/704403
Acesso em linha:http://hdl.handle.net/10486/704403
https://dx.doi.org/10.1093/mnras/stac275
Access Level:acceso abierto
Palavra-chave:Cosmology: Theory
Galaxies: Clusters: General
Galaxies: Haloes
Large-Scale Structure of Universe
Methods: Numerical
Física
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spelling The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxiesContreras-Santos, AnaKnebe, AlexanderPearce, FrazerHaggar, RoanGray, MeghanCui, WeiguangYepes Alonso, GustavoDe Petris, MarcoDe Luca, FedericoPower, ChrisMostoghiu, RobertNuza, Sebastián E.Hoeft, MatthiasCosmology: TheoryGalaxies: Clusters: GeneralGalaxies: HaloesLarge-Scale Structure of UniverseMethods: NumericalFísicaThis is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of recordMonthly Notices of the Royal Astronomical Society 511.2 (2022): 2897-2913 is available online at: https://academic.oup.com/mnras/article-abstract/511/2/2897/6517700?redirectedFrom=fulltextUsing the data set of the three hundred project, i.e. a suite of 324 hydrodynamical resimulations of cluster-sized haloes, we study galaxy cluster mergers and their effect on colour and luminosity changes of their brightest cluster galaxies (BCG). We track the main progenitor of each halo at z = 0 and search for merger situations based on its mass accretion history, defining mergers as very rapid increases in the halo mass. Based upon the evolution of the dynamical state of the cluster we define a pre-and post-merger phase. We create a list of all these events and statistically study their mass ratio and time-scales, with the former verifying that all instances are in fact major mergers. By comparing to a control sample of clusters without mergers, we study the effect mergers have on the stellar component of the BCG. Analysing the mass, age, and metallicity of the BCG stellar particles, we find that the stellar content of BCGs grows significantly during mergers and, even though the main growth mechanism is the accretion of older stars, there is even a burst in star formation induced by the merger. In our simulations, BCGs in mergers form in median around 70 per cent more stars than those normally growing, although this depends on the radius considered for defining the BCG. Regarding observable properties, we see an increase in SDSS-u luminosity of 20 per cent during mergers, accompanied by a slightly slower increase of the galaxy g-r colour as compared to the control sampleRoyal Astronomical SocietyOxford University PressDepartamento de Física TeóricaFacultad de Ciencias20222022-01-31research articlehttp://purl.org/coar/resource_type/c_2df8fbb1AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/704403https://dx.doi.org/10.1093/mnras/stac275reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengEuropean Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 734374European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 670193open accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7044032026-06-23T12:46:27Z
dc.title.none.fl_str_mv The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxies
title The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxies
spellingShingle The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxies
Contreras-Santos, Ana
Cosmology: Theory
Galaxies: Clusters: General
Galaxies: Haloes
Large-Scale Structure of Universe
Methods: Numerical
Física
title_short The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxies
title_full The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxies
title_fullStr The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxies
title_full_unstemmed The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxies
title_sort The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxies
dc.creator.none.fl_str_mv Contreras-Santos, Ana
Knebe, Alexander
Pearce, Frazer
Haggar, Roan
Gray, Meghan
Cui, Weiguang
Yepes Alonso, Gustavo
De Petris, Marco
De Luca, Federico
Power, Chris
Mostoghiu, Robert
Nuza, Sebastián E.
Hoeft, Matthias
author Contreras-Santos, Ana
author_facet Contreras-Santos, Ana
Knebe, Alexander
Pearce, Frazer
Haggar, Roan
Gray, Meghan
Cui, Weiguang
Yepes Alonso, Gustavo
De Petris, Marco
De Luca, Federico
Power, Chris
Mostoghiu, Robert
Nuza, Sebastián E.
Hoeft, Matthias
author_role author
author2 Knebe, Alexander
Pearce, Frazer
Haggar, Roan
Gray, Meghan
Cui, Weiguang
Yepes Alonso, Gustavo
De Petris, Marco
De Luca, Federico
Power, Chris
Mostoghiu, Robert
Nuza, Sebastián E.
Hoeft, Matthias
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física Teórica
Facultad de Ciencias
dc.subject.none.fl_str_mv Cosmology: Theory
Galaxies: Clusters: General
Galaxies: Haloes
Large-Scale Structure of Universe
Methods: Numerical
Física
topic Cosmology: Theory
Galaxies: Clusters: General
Galaxies: Haloes
Large-Scale Structure of Universe
Methods: Numerical
Física
description This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of recordMonthly Notices of the Royal Astronomical Society 511.2 (2022): 2897-2913 is available online at: https://academic.oup.com/mnras/article-abstract/511/2/2897/6517700?redirectedFrom=fulltext
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-01-31
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/704403
https://dx.doi.org/10.1093/mnras/stac275
url http://hdl.handle.net/10486/704403
https://dx.doi.org/10.1093/mnras/stac275
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 734374

European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 670193
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Royal Astronomical Society
Oxford University Press
publisher.none.fl_str_mv Royal Astronomical Society
Oxford University Press
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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